Ok I am helping my friend out with his 83 Merc 2 door and it is having those issues. What should I check for, a bad map or what? I searched and found alot of these threads for 86 and up panthers but no CFI ones. Oh yeah it is a 302 with cfi so ok.
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2000 Mustang GT "Blondie", 2000 CVPI "Sargent Crusty" -
not too familiar with cfi but I would suspect either a bad O2 sensor, or the fuel pressure regulator is bad. Last but not least, an injector could be gummed up and sticking partially open, but I doubt it.
My first guess would be the o2 sensor, but checking the fuel pressure is cheaper, so I would try that first.Owner of the only known 5 speed box wagon with a lift kit.
AKA, Herkimer the Hillbilly SUV.
Axle codes
Open/Lock/Ratio #
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G / H / 2.26
B / C / 2.47
8 / M / 2.73
7 / - / 3.07
Y / Z / 3.08
4 / D / 3.42
F / R / 3.45
5 / E / 3.27
6 / W / 3.73
2 / K / 3.55
A / - / 3.63
J / - / 3.85 -
No info in the CFI section?
Running rich. TPS, MAP, and all kinds of other things. I'd look for broken vacuum lines first...Builder/Owner of Badass Panther Wagons
Busy maintaining a fleet of FordsComment
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busted vacuum line on the MAP. 83 is EEC III CFI, they're a bit of a different beast. No timing adjustments, minimal ability to pull codes, and expensive sensors.86 Lincoln Town Car (Galactica).
5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley
91 Lincoln Mark VII LSC grandpa spec white and cranberry
1984 Lincoln Continental TurboDiesel - rolls coal
Originally posted by phayzer5
I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers
Everything looks like voodoo if you don't understand how it worksComment
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could be alot of things really.. black smoke? is it really sooty and smelly? my dads van did that when the dizzy bolt came loose and threw off the timing.
when it is running does it run fine with power?Give a man a fish and he will be fed for a day. Teach a man to fish and he will promptly forget that he once did not know, and proceed to call anyone who asks, a n00b and flame them on the boards for being stupid.Comment
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vac line i believe one time i was fiddling around with mine and pulled it out and car started black smoke and stalling and i rushed to put it back onsigpic1986 Crown Victoria 302 Cold Air,Mac Shorty headers, Full Dual Exhaust with Super Forty Flows, Wagon Suspension with a Full Sound System Replacement 1/4 time 17.486 @ 77.43mphComment
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yeah - heavy black smoke makes me think MAP sensor... and that EEC-III one is no longer availiable...Pete ::::>>> resident LED addict and CFI defector LED bulb replacements
'LTD HPP' 85 Vic (my rusty baby) '06 Honda Reflex 250cc 'Baileys' 91 Vic (faded cream puff) ClifFord 'ODB' 88 P72 (SOLD) '77 LTDII (RIP)
sigpic
85HPP's most noteworthy mods: CFI to SEFI conversion w/HO upperstuff headers & flowmasters P71 airbox Towncar seats LED dash light-show center console w/5 gauge package LED 3rd brake light 3G alternator mini starter washer/coolant bottle upgrade Towncar power trunk pull underhood fuse/relay box 16" HPP wheels - police swaybars w/poly rubbers - budget Alpine driven 10 speaker stereoComment
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I would bet it's a MAP sensor problem. When I had no Vacuum at my MAP, it would run real rich and would ocassionally stall. Make sure you have a vacuum connection at the MAP. Have you checked it for codes? If it comes to be a bad O2 sensor yet it also says bad MAP, replace the MAP first. I am pretty sure that's what it is.Originally posted by zwack88 View PostComment
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good luck finding one in the yard. 1980-1983 Lincolns with a 302, or 1983 cars with a 302. Not a bunch of them around. Those sensors are grossly expensive, like 2-4x what eec iv parts cost.86 Lincoln Town Car (Galactica).
5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley
91 Lincoln Mark VII LSC grandpa spec white and cranberry
1984 Lincoln Continental TurboDiesel - rolls coal
Originally posted by phayzer5
I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers
Everything looks like voodoo if you don't understand how it worksComment
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An 83 is a good carb swap cantidate. The EEC-III is one of ford's biggest mistakes.
I loathed the setup I had on the original GMGT...1983 Grand Marquis 2Dr Sedan "Mercules"
Tremec TKO conversion, hydraulic clutch, HURST equipped!
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its a typical cfi thing, when it works, its fine, but when it fucks up good luck. the fact that the sensors are way expensive makes it a whole lot worse to deal with. I've seen perfectly running eec iii cfi cars, (ok, one, a ratty 83 tbird) and i've seen perfectly running eec iv cfi cars as well. they do exist.86 Lincoln Town Car (Galactica).
5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley
91 Lincoln Mark VII LSC grandpa spec white and cranberry
1984 Lincoln Continental TurboDiesel - rolls coal
Originally posted by phayzer5
I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers
Everything looks like voodoo if you don't understand how it worksComment
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